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PAID 111 Bradbury: Fahrenheit 451 (Fall 2023)

Where in the Library...?

In This Section:

  • An overview of call numbers
  • Where relevant call numbers are located in Preus

A Brief Introduction to Call Numbers

infographic describing the general subject classifications of Library of Congress class lettersCall numbers? What are they?

Call numbers are assigned to each book in the library. They...

  • Help us find materials
  • Group books by subject or topic

Here in Preus (and in most academic libraries) we use the Library of Congress Classification system.


Who came up with this??

  • Some old, white men who worked for the government in the late 19th and early 20th centuries


Classes A - L are on the 1st floor of Preus.

Classes M - Z are on the 2nd floor of Preus.


An Example:

The call number for the text, Eating Animals, is:




Infographic created by McMaster University Library.

Content © Luther College Preus Library, 700 College Drive, Decorah, IA 52101 (563) 387-1166 Creative Commons License
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